WO2004064698A2 - Dispositif de chargement et de dechargement de civiere d'ambulance - Google Patents

Dispositif de chargement et de dechargement de civiere d'ambulance Download PDF

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Publication number
WO2004064698A2
WO2004064698A2 PCT/US2004/001070 US2004001070W WO2004064698A2 WO 2004064698 A2 WO2004064698 A2 WO 2004064698A2 US 2004001070 W US2004001070 W US 2004001070W WO 2004064698 A2 WO2004064698 A2 WO 2004064698A2
Authority
WO
WIPO (PCT)
Prior art keywords
trolley
ambulance cot
ambulance
elongate
guide track
Prior art date
Application number
PCT/US2004/001070
Other languages
English (en)
Other versions
WO2004064698B1 (fr
WO2004064698A3 (fr
Inventor
Clifford E. Lambarth
Christopher B. Way
Original Assignee
Stryker Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP04702232A priority Critical patent/EP1585474B1/fr
Priority to DE602004029980T priority patent/DE602004029980D1/de
Priority to AU2004206861A priority patent/AU2004206861B2/en
Priority to CN2004800021074A priority patent/CN1735395B/zh
Priority to US10/542,232 priority patent/US7478855B2/en
Priority to JP2006500974A priority patent/JP4676954B2/ja
Application filed by Stryker Corporation filed Critical Stryker Corporation
Publication of WO2004064698A2 publication Critical patent/WO2004064698A2/fr
Publication of WO2004064698A3 publication Critical patent/WO2004064698A3/fr
Publication of WO2004064698B1 publication Critical patent/WO2004064698B1/fr
Priority to HK06109010.1A priority patent/HK1088527A1/xx
Priority to US12/156,852 priority patent/US7520551B2/en
Priority to US12/156,853 priority patent/US7540547B2/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • A61G1/052—Struts, spars or legs
    • A61G1/056—Swivelling legs
    • A61G1/0565—Swivelling legs simultaneously folding, e.g. parallelogram structures
    • A61G1/0567—Swivelling legs simultaneously folding, e.g. parallelogram structures folding in x-shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/0206—Stretchers with wheels characterised by the number of supporting wheels if stretcher is extended
    • A61G1/0212—2 pairs having wheels within a pair on the same position in longitudinal direction, e.g. on the same axis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/0237—Stretchers with wheels having at least one swivelling wheel, e.g. castors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/025—Stretchers with wheels having auxiliary wheels, e.g. wheels not touching the ground in extended position
    • A61G1/0262—Stretchers with wheels having auxiliary wheels, e.g. wheels not touching the ground in extended position having loading wheels situated in the front during loading
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/0293—Stretchers with wheels stretcher supports with wheels, e.g. used for stretchers without wheels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/06—Supports for stretchers, e.g. to be placed in or on vehicles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • A61G3/0218—Loading or unloading stretchers
    • A61G3/0245—Loading or unloading stretchers by translating the support
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • A61G3/0218—Loading or unloading stretchers
    • A61G3/0254—Loading or unloading stretchers by moving the stretcher on a horizontal path, e.g. sliding or rolling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/08—Accommodating or securing wheelchairs or stretchers
    • A61G3/0816—Accommodating or securing stretchers
    • A61G3/0833—Accommodating or securing stretchers using other support
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/08—Accommodating or securing wheelchairs or stretchers
    • A61G3/0816—Accommodating or securing stretchers
    • A61G3/0875—Securing stretchers, e.g. fastening means
    • A61G3/0883—Securing stretchers, e.g. fastening means by preventing lateral movement, e.g. tracks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/08—Accommodating or securing wheelchairs or stretchers
    • A61G3/0816—Accommodating or securing stretchers
    • A61G3/0875—Securing stretchers, e.g. fastening means
    • A61G3/0891—Securing stretchers, e.g. fastening means by preventing longitudinal movement

Definitions

  • This invention relates to an ambulance cot loading and unloading device and methodology, as well as an ambulance cot support arrangement, especially suitable for ambulances.
  • EMS Emergency medical service
  • the head end of the ambulance cot needs to be lifted by a first EMS attendant for insertion into the cargo area so that the head end wheels become supported on the floor surface of the cargo area as the base construction for the ambulance cot is collapsed thereby necessitating a second EMS attendant to lift the combined weight of the ambulance cot and patient at the foot end of the ambulance cot during the completion of an insertion of the ambulance cot into the cargo area.
  • an ambulance cot loading and unloading device which utilizes an elongate guide track configured for mounting to a floor surface of a cargo area on the ambulance.
  • a trolley is supported on the elongate guide track for movement relative to the guide track.
  • the trolley is configured to extend to a location outside of the cargo area when the trolley is in a first position and additionally configured to be housed entirely inside the cargo area when the trolley is not in the first position.
  • the ambulance cot has a collapsible and extendable base and a patient support deck mounted on the base.
  • a connection mechanism is provided on the trolley and the ambulance cot which is configured to interconnect and securely hold the ambulance cot on the trolley.
  • Figure 1 is an isometric view of the interior of a cargo area of an ambulance with an ambulance cot loading and unloading device embodying the invention being incorporated therein;
  • Figure 2 is a view similar to Figure 1, but with the ambulance cot loading and unloading device shifted from a stowed position in the interior of the cargo area as shown in Figure 1 to a deployed position;
  • Figure 3 is a view similar to Figure 1, but with the ambulance cot loading and unloading device removed;
  • Figure 4 is a schematic side illustration of the ambulance cot loading and unloading device in a deployed position thereof;
  • Figure 5 is a schematic side view of the ambulance cot loading and unloading device in a stowed and locked position inside the cargo area of the ambulance;
  • Figure 6 is a schematic side illustration similar to Figure 5, but in an unlocked condition
  • Figure 7 is a schematic sectional view of the encircled area identified in broken lines in Figure 4.
  • Figure 8 is a side view of Figure 7 and illustrating a locking pin in a locked position
  • Figure 9 is a view like Figure 8, but with the locking pin shifted'to the unlocked position;
  • Figure 10 is an isometric view of the ambulance cot loading and unloading device in the stowed position
  • Figure 11 is an isometric view of a fragment of the ambulance cot loading and unloading device with the trolley and elongate boom thereon located in the deployed position;
  • Figure 12 is a fragment of the interior-most end of the ambulance cot loading and unloading device
  • Figure 13 is a schematic side illustration of the ambulance cot loading and unloading device
  • Figure 14 is an illustration of the encircled area of Figure 13;
  • Figure 15 is like Figure 14, but with a locking device shifted to the locked position;
  • Figure 16 is a view like Figure 15, but with the locking device shifted to the unlocked position;
  • Figure 17 is a schematic side illustration of the trolley and elongate boom
  • Figure 18 is a side illustration of an ambulance cot embodying the invention
  • Figure 19 is a top illustration of a head end of the ambulance cot
  • Figure 20 is a enlarged detail of an operative link between the ambulance cot and the trolley;
  • Figure 21 is a schematic illustration of the start of an ambulance cot loading-- sequence
  • Figure 22 is a view similar to Figure 21, but with the trolley and elongate boom thereon moved to the deployed position ready to accept the ambulance cot thereon;
  • Figure 23 is a view similar to Figure 22, but with the ambulance cot engaged with the trolley;
  • Figure 24 is a view similar to Figure 23, but with the ambulance cot supported entirely on the trolley and associated elongate boom;
  • Figure 25 is a view similar to Figure 24, but with the ambulance cot base shifted to a position ready for insertion into the cargo area of the ambulance;
  • Figure 26 is a view similar to Figure 25, but with the ambulance cot and trolley moved partially into the cargo area of the ambulance;
  • Figure 27 is a view similar to Figure 26, but with the trolley and the ambulance cot inserted fully into the interior of the cargo area of the ambulance;
  • Figure 28 is an enlarged isometric of one end of the elongate guide track and the associated structure at the foot end of the ambulance cot;
  • Figure 29 is an enlarged side view of the operatively engaged elongate track and foot end of the ambulance cot;
  • Figure 30 is a side view illustrating the starting of an unloading sequence
  • Figure 31 is a view similar to Figure 30, but with the ambulance cot having partially exited the cargo area;
  • Figure 32 is a view similar to Figure 31, but with the base portion of the ambulance cot oriented above the ground surface;
  • Figure 33 is a view similar to Figure 32, but with the base of the ambulance cot partially extended;
  • Figure 34 is a view similar to Figure 33, but with the base of the ambulance cot fully extended so that the wheels thereof are supported on the ground surface; and
  • Figure 35 is a view similar to Figure 34, but with the ambulance cot separated from the ambulance cot loading and unloading mechanism.
  • Figures 1 and 2 are both an isometric view of an ambulance cot loading and unloading device 10 embodying the invention and oriented on the floor surface 11 of a cargo area 12 of an ambulance 13.
  • Figure 2 illustrates the ambulance cot loading and unloading device in a deployed position wherein a distal end 14 of an elongate boom 16 extends to a location outside of the cargo area 12.
  • a plurality of floor mounted plates 17 ( Figure 3) . These plates are provided almost in a standard array in every cargo area of an ambulance so that the inventive ambulance cot loading and unloading device 10 can interface therewith.
  • the ambulance cot loading and unloading device 10 includes an elongate guide track 15 consisting of a pair of elongate and parallel guide tubes 18 and 19 having a plurality of mounting plates interconnecting the guide tubes at multiple locations along the lengths thereof.
  • the mounting plates 21 are spaced apart at an interval equal to the spacing between the floor plates 17 illustrated in Figure 3 so that the mounting plates 21 can be utilized to secure the guide tubes 18 and 19 to the floor 11.
  • the ambulance cot loading and unloading device 10 includes a trolley 22 that is movable along the length of the guide tubes 18 and 19.
  • the trolley includes a pair of tubular sleeves 23 and 24 respectively telescoped over the guide tubes 18 and 19 and a plate 26 ( Figure 12) interconnecting the sleeves 23 and 24 together.
  • a locking bar 27 is also connected to and extends between the sleeves 23 and 24 as is also illustrated in Figure 12.
  • the trolley 22 also has a pair of upstanding bearing blocks 28 and 29 provided on the sleeves 23 and 24, respectively.
  • the rightmost mounting plate 21 in Figure 1 includes a plate 31 having an electrical connector 32 centrally mounted thereon, the electrical connector 32 being connected to an electrical system onboard the ambulance at a location beneath the floor plate 17.
  • An electrical connector 33 is centrally provided on the locking bar 27 and is configured to mate with the electrical connector 32 when the trolley 22 reaches a location at the rightmost end of the guide tubes 18 and 19.
  • the elongate boom 16 is pivotally secured at one end to the bearing blocks 28 and 29 by any convenient structure providing an axle therefor.
  • the axle has been generally indicated by the reference numeral 34.
  • the elongate boom includes at the end thereof adjacent the axle 34 an upstanding hook-like configuration 36 wherein the opening into the hook-like configuration opens in a direction toward the distal end 14 of the elongate boom 16.
  • Within the interior 37 of the hook-like configuration 36 there is provided two sets of toggle locking members 38 and 39, also shown in Figure 17.
  • Each of the set of toggle levers 38 and 39 are pivotally mounted on the elongate boom 16 and are configured to move in a manner suggested by Figures 14, 15 and 16.
  • Each of the toggle levers 38 and 39 includes a torsion spring (not shown) urging the toggle levers 38 and 39 to the position illustrated in Figures 1 and 17.
  • a torsion spring (not shown) urging the toggle levers 38 and 39 to the position illustrated in Figures 1 and 17.
  • a first manually engageable handle 44 is connected to the latch 42 by means of an elongate linkage 46 to facilitate a movement of the latch so that it is removable from the notch 43 to enable the torsion spring to return each of the toggle levers 38 and 39 to the position illustrated in Figure 17.
  • a second manually engageable handle 45 is linked by a linkage member 50 ( Figure 17) to the elongate linkage 46 to provide a second location from which to facilitate a movement of the latch 42 so that it is removed from the notch 43 to enable the torsion spring to return each of the toggle levers 38 and 39 to the position illustrated in Figure 17.
  • a depression 47 Adjacent the distal end 14 of the elongate boom 16 there is provided a depression 47 in which there is provided a set of electrical contacts 48.
  • the electrical contacts 48 are electrically connected to the electrical contact 33 described above. The functionality of the set of electrical contacts 48 will be described in more detail below.
  • the elongate boom 16 is pivotal about the axle 34.
  • An electrical jack mechanism 49 is connected to and extends between the plate 26 and the underside of the elongate boom 16.
  • the electrical jack mechanism 49 is extendable and contractible to effect a pivotal movement of the elongate boom in a manner that will be readily understood by those skilled in the art.
  • the jack mechanism 49 is mounted adjacent the distal end 14 and, upon manipulation, effects an extension or contraction of the jack mechanism 49 through the electrical connection provided between the switch 51 and a drive motor for the jack mechanism 49. If desired, an optional height sensor
  • a lug 53 is provided on the underside of the elongate boom 16 and is configured to be received into a receptacle 54 provided on the elongate guide track 15 defined by the guide tubes 18 and 19. It is desirable to orient the receptacle 54 on a mounting plate 21 so that upon reception of a lug 53 therein when the elongate boom 16 is lowered to the Figure 4 position, the trolley 22 will be incapable of movement relative to the elongate guide tubes 18 and 19. Upon a raising of the elongate boom 16 to the position illustrated in Figure 17, the lug 53 is provided on the underside of the elongate boom 16 and is configured to be received into a receptacle 54 provided on the elongate guide track 15 defined by the guide tubes 18 and 19. It is desirable to orient the receptacle 54 on a mounting plate 21 so that upon reception of a lug 53 therein when the elongate boom 16 is lowered to the Figure 4 position, the trolley 22 will be incapable of movement relative to the elongate guide
  • FIG. 10 there is provided a centrally disposed electrical connector 56 on a mounting plate 57 oriented at an end of the guide track 15 remote from the electrical connector 32.
  • the electrical connector 56 is connected to the onboard electrical system of the ambulance.
  • the locking mechanism 58 includes a pin 59 ( Figure 8) which is supported for vertical movement.
  • the pin includes a roller 61 rotatably secured to the bottom end of the pin 59.
  • a plate 62 having a notch 63 therein is secured to the elongate guide track, such as to one of the mounting plates 21 so that the pin 59 can be moved vertically into and out of the notch 63.
  • An object detector 66 is oriented in the interior 37 of the hook-like configuration 36 on the elongate boom 16. When an object is present in the interior 37, the object detector 36 will be articulated downwardly as depicted in Figure 6.
  • a linkage mechanism
  • An ambulance cot 80 ( Figure 18) is configured to operatively load and unload from the ambulance cot loading and unloading device 10 described above.
  • the particular construction of the ambulance cot 80 is disclosed in detail in U.S. Patent No. 5 537 700 and the subject matter thereof is incorporated herein by reference. ' The ambulance cot 80 described in the aforesaid patent has been modified at both the head end 81 and the foot end 82 and as described below.
  • the head end 81 has been modified to include a roller 83 rotatably mounted on an axis of rotation that extends perpendicular to a longitudinal axis of the ambulance cot 80.
  • the auxiliary handle described in the aforementioned patent has been reconfigured' as a foot end lift bar 84 ( Figures 28 and 29) and additional hand grips 86 have been operatively connected to the foot end 82 of the ambulance cot 80 to facilitate attendant handling of the ambulance cot.
  • the ambulance cot 80 has been further modified to include a midsection connection piece 87 having a set of electrical contacts 88 thereon configured to interconnect with the set of electrical contacts 48 on the elongate boom 16.
  • the connection 87 is also configured to snugly nest into the depression 87 in which the electrical contacts 48 is provided.
  • the ambulance cot 80 has been further modified to include a handle 91 interconnected by a linkage (not shown) to an abutment 92 oriented adjacent the connection 87.
  • the abutment 92 is configured to engage the handle 44 on the elongate boom in response to manual manipulation of the handle 91.
  • the handle 91 is reciprocally supported in an elongate slot 93 provided at the foot end 82 of the ambulance cot 80 so that upon reciprocation of the handle 91 in the slot 93, the abutment 92 will also reciprocate to effect movement of the handle 44.
  • a three position toggle switch 94 Adjacent the handle 86 at the foot end 82 of the cot 80 there is provided a three position toggle switch 94. Just forward of the foot end 82 there is provided a housing 96 in which is housed an electric motor 97 ( Figure 18) and a rechargeable battery pack 98 for supplying power to the motor in a manner controlled by the aforementioned toggle switch 94.
  • the battery pack 98 is configured to be easily exchanged without the necessity of tools and could be one or more batteries.
  • the motor 97 could be a conventional DC drive motor for rotatably driving an input shaft of a hydraulic pump configured to be connected in fluid circuit with a hydraulic cylinder, the extendible and retractable rod of which is connected to the movable cross member on the cot 80 to facilitate a powered raising and lowering of the cot base 99.
  • the battery 98 is capable of being charged when electrical power is supplied to the electrical contacts 88.
  • the three position toggle switch 94 is capable of controlling the battery energy to the jack mechanism 49 to effect the raising and lowering movements of the elongate boom 16 only when the electrical contacts 48 and 88 are engaged as will be described in more detail below.
  • the collapsible and extendable base 99 structure is virtually the same as the base described in the aforementioned patent and, therefore, further detailed discussion thereof is believed unnecessary.
  • the attendant can grasp the handle 68 at the distal end 14 of the elongate boom 16 to impart a rearward movement to the trolley 22 so that it shifts its location from the position illustrated in Figure 21 to the position illustrated in Figure 22.
  • the electrical contact 60 on the trolley 22 ( Figure 12) will interconnect with the electrical connector 56 so that electrical power from the ambulance 13 will be supplied to the toggle switch 51 to enable operative control to be provided to the electric motor for the jack mechanism 49 so as to facilitate an extension or retraction of the jack mechanism 49 to thereby effect a raising or a lowering of the elongate boom 16 relative to the trolley 22.
  • the toggle switch 51 will effect a lowering of the elongate boom 16 to a location wherein the lug 53 enters the receptacle 54 on the elongate guide track to effectively lock and hold the trolley 22 in place while the ambulance cot 80 is being loaded.
  • the ambulance cot 80 is moved by the attendant and on its wheel supported base 99 until the roller at the head end of the ambulance cot engages the inclined upper surface of the elongate boom 16 and rolls into the interior 37 of the hook-like configuration 36.
  • the lead support wheel 101 moves into engagement and rests on the floor surface 11 of the cargo area 12 of the ambulance 13 as depicted in Figure 23.
  • the sets of toggle levers 38 and 39 will be moved clockwise from the position illustrated in Figure 17 to a position wherein the long legs 41 ( Figure 17) become upright to effect a holding of the roller 83 into the interior space 37 of the hook-like configuration 36.
  • the latch 42 will be received in a notch 43 to hold the toggle levers 39 in the locked position whereat the long leg 41 extends in a vertically upright manner.
  • the ambulance cot 80 is now locked at the head end 81 thereof to the ambulance cot loading and unloading device 10.
  • the roller 83 has depressed the object detector 66 inside the interior 37 of the hook-like configuration to effect a raising through the linkage 67 of the locking pin 61.
  • the toggle lever switch 94 is next operated to change its state from a "neutral" state ( Figure 18) to a "retract base” state to effect a battery powered operation of the motor 97 to effect a contracting of the base 99 as depicted in Figure 24.
  • the ambulance cot 80 will initially be lowered about a pivot axis defined by the roller 83 received in the hook-like configuration 36 until the connection piece 87 is received in the depression 47 in the elongate boom 16 so that the sets of contacts 88 and 48 come into contact with each other.
  • the "retract base” state of the toggle switch 94 usurps the toggle switch 51 so that the toggle switch 94 in the "retract base” position effects an extension of the jack mechanism 49 and thence a raising of the elongate boom 16 from the Figure 24 position to the Figure 25 position.
  • the toggle switch 94 remains in the "retract base” condition until the base 99 is fully collapsed and all six wheels on the ambulance cot 80 are aligned with the floor 11 in the cargo area 12 of the ambulance 13. Thereafter, the attendant can simply push on the foot end 82 of the ambulance cot 80 to facilitate movement of the ambulance cot 80 and the interconnected trolley 22 through the position illustrated in Figures 26 to the position illustrated in Figure 27.
  • the trolley locking mechanism 102 consists of a pair of laterally spaced hook-like configurations 103 which each include an interior space 104 facilitating reception of the locking bar 27 on the trolley 22.
  • a toggle lever 106 is associated with each hook-like configuration 103 and rotate against the urging of a not illustrated torsion spring so that the horizontal leg illustrated in Figure 12 will be shifted to a vertically upright position to hold the locking bar 27 in place.
  • the change in state of the toggle levers 106 is illustrated in Figures 14, 15 and 16.
  • a foot end ambulance cot locking system 107 is connected to the elongate guide track 18, 19 ( Figure 10) and is identical in form to the trolley locking mechanism 102. That is, each of the foot end ambulance cot locking mechanism 107 includes a pair of laterally spaced hooklike configurations 103 and a rotatable toggle lever 106 urged by a torsion spring to the position illustrated in Figure 10.
  • the lifting bar 84 Figure 28
  • the lifting bar 84 will effect a pivotal movement of the set of toggle levers 106 in the manner illustrated in Figures 14, 15 and 16.
  • a latch mechanism 108 operatively engaging the toggle levers 106 at all four locations will effect a locking of the toggle levers 106 in the elevated position illustrated in Figure 15 in manner similar to the operative arrangement between the latch 42 and the set of toggle levers 38 and 39 described above.
  • the ambulance cot 80 is now secured inside the cargo area 12 of the ambulance 13 at four spaced locations defined by the spaced hook-like configurations 103 illustrated in Figure 10.
  • the head end 81 of the ambulance cot 80 is secured to the trolley 22 by the hook-like configuration 36 and associated sets of toggle levers 38 and 39.
  • the attendant can pull on the lift bar 84 or the handles 86 at the foot end 82 of the ambulance cot 80 to effect a movement of not only the ambulance cot 80 but also the trolley 22 from the position illustrated in Figure 30 through the position illustrated in Figure 31 to the position illustrated in Figure 32.
  • the handle 91 at the foot end 82 of the ambulance cot 80 is slid forwardly in the elongate slot 93 so that the abutment 92 interconnected therewith will abut the handle 44 on the elongate boom 44 to effect an unlatching of the set of toggle levers 38, 39 to release the roller 83 from the hook-like configuration 36 on the trolley 22.
  • the handle 45 can be manually manipulated to free the ambulance cot 80 from the trolley 22.
  • the ambulance cot 80 is now freed from the ambulance cot loading and unloading device 10 and is capable of moving freely away from the ambulance on the wheel supported base 99 as depicted in Figure 35.

Abstract

La présente invention a trait à un dispositif de chargement et de déchargement d'une civière d'ambulance qui utilise une piste de guidage allongée conformée pour être montée à une surface de sol d'une zone de chargement sur une ambulance. Un chariot est supporté pour un déplacement par rapport à la piste de guidage et comporte une queue de chargement. La civière d'ambulance comprend un socle motorisé repliable et extensible et un plateau de support de patient monté sur le socle. Une mécanisme de liaison est prévu sur le chariot et la civière d'ambulance qui est conformé à les assembler et à maintenir solidement la civière d'ambulance sur le chariot.
PCT/US2004/001070 2003-01-15 2004-01-14 Dispositif de chargement et de dechargement de civiere d'ambulance WO2004064698A2 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE602004029980T DE602004029980D1 (de) 2003-01-15 2004-01-14 Be- und entladungsvorrichtung für krankentragen für krankenwagen
AU2004206861A AU2004206861B2 (en) 2003-01-15 2004-01-14 Ambulance cot loading and unloading device
CN2004800021074A CN1735395B (zh) 2003-01-15 2004-01-14 救护车轻便床的装卸装置
US10/542,232 US7478855B2 (en) 2003-01-15 2004-01-14 Ambulance cot loading and unloading device
JP2006500974A JP4676954B2 (ja) 2003-01-15 2004-01-14 救急用簡易ベッドの積み降ろし装置
EP04702232A EP1585474B1 (fr) 2003-01-15 2004-01-14 Dispositif de chargement et de dechargement de civiere d'ambulance
HK06109010.1A HK1088527A1 (en) 2003-01-15 2006-08-14 Ambulance cot loading and unloading device
US12/156,852 US7520551B2 (en) 2003-01-15 2008-06-05 Method of loading an ambulance cot into an ambulance
US12/156,853 US7540547B2 (en) 2003-01-15 2008-06-05 Method of unloading an ambulance cot into an ambulance

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US11723819B2 (en) * 2018-08-30 2023-08-15 Stryker Corporation Patient transport apparatus with motion dampening
EP3738568A1 (fr) 2019-05-14 2020-11-18 Stollenwerk und Cie. GmbH Fabrik für Sanitätsausrüstungen Procédé de déchargement d'une ambulance
WO2020228945A1 (fr) * 2019-05-14 2020-11-19 Stollenwerk und Cie. GmbH Fabrik für Sanitätsausrüstungen Procédé de chargement et de déchargement d'un véhicule de transport de malades
EP4162909A1 (fr) * 2021-10-07 2023-04-12 Stem S.r.l. Brancard d'ambulance
EP4162910A1 (fr) * 2021-10-07 2023-04-12 Stem S.r.l. Système de chargement/déchargement d'un brancard d'ambulance sur/à partir d'une surface de chargement d'ambulance et brancard d'ambulance associé

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US20060181100A1 (en) 2006-08-17
US7520551B2 (en) 2009-04-21
AU2004206861A1 (en) 2004-08-05
EP2138143B1 (fr) 2012-05-23
EP2138143B8 (fr) 2012-08-15
EP2228045A3 (fr) 2010-10-27
WO2004064698B1 (fr) 2005-01-13
WO2004064698A3 (fr) 2004-11-11
EP2138143A3 (fr) 2010-10-27
EP2228045B1 (fr) 2015-03-04
HK1088527A1 (en) 2006-11-10
EP2228045A2 (fr) 2010-09-15
EP2138143A2 (fr) 2009-12-30
JP4676954B2 (ja) 2011-04-27
EP1585474B1 (fr) 2010-11-10
JP2006515211A (ja) 2006-05-25
EP1585474A2 (fr) 2005-10-19
CN1735395B (zh) 2010-06-23
EP2116216A3 (fr) 2010-10-27
EP2116216B8 (fr) 2012-08-15
CN1735395A (zh) 2006-02-15
US7478855B2 (en) 2009-01-20
US7540547B2 (en) 2009-06-02
EP2116216B1 (fr) 2012-05-30
AU2004206861B2 (en) 2008-08-28
US20080290679A1 (en) 2008-11-27
EP2116216A2 (fr) 2009-11-11
US20080240901A1 (en) 2008-10-02

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